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AI · alternatives · 2026

24 alternatives to Agent OTP

SMS verification API built for AI Agents

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Dial▲228

    Give your AI agent a real phone number in 10 seconds

    Aug 2026 · getdial.ai · its alternatives →

  2. 2

    A marketplace for AI agents you can text

    Sep 2026 · imessage.store · its alternatives →

  3. 3

    HTTP API for Claude Code, Goose, Aider, Gemini, Amp, and Codex - coder/agentapi

    2025 · github.com · its alternatives →

  4. 4

    Let your agents read, send, and react to email autonomously

    Jun 2026 · atomicmail.ai · its alternatives →

  5. 5

    Build AI agents that respond with UI instead of text

    Feb 2026 · thesys.dev · its alternatives →

  6. 6

    Phone numbers for AI agents: voice, SMS, OTP & memory

    Jun 2026 · agentcall.co · its alternatives →

  7. 7

    Build your own AI Agent for machines!

    2025 · share.streamlit.io · its alternatives →

  8. 8

    Chat with your personalized AI bot via SMS

    2023 · aichatsms.com · its alternatives →

  9. 9AE

    Hi HN! We're Haakam, Michael, and Adi from AgentMail- a ycs25 company. We give AI agents their own email inboxes. Recently, we ran an experiment called Agent.Email. It's a signup flow designed specifically for AI agents instead of humans. The inspiration came from a few comments we received when we did our seed launch a few months back. They all came from the very apt observation that agents not being able to sign up to a product made for agents without human credentials was ironic and unideal. This is basically the thesis we built AgentMail on: The internet was made for humans exclusively,…

    May 2026 · its alternatives →

  10. 10

    Human-like AI phone calls that convert

    2024 · newoaks.ai · its alternatives →

  11. 11

    Personal AI Agent in Your Chat

    Mar 2026 · manus.im · its alternatives →

  12. 12

    Easily build AI agents that connect to any service, no-code

    2025 · quickagent.app · its alternatives →

  13. 13

    Automate SMS replies using a bot

    2018 · justcall.io · its alternatives →

  14. 14

    Near-human phone support and conversation on any site

    2024 · conversionagent.ai · its alternatives →

  15. 15

    Data APIs for AI agents & developers — free to start

    Feb 2026 · apipick.com · its alternatives →

  16. 16

    No-code AI agents for any channel in minutes

    Jan 2026 · aismarttalk.tech · its alternatives →

  17. 17

    Human-like AI phone agents for businesses.

    2025 · getcallsi.in · its alternatives →

  18. 18

    Phone numbers for your AI agents.

    Mar 2026 · clawphone.me · its alternatives →

  19. 19

    Give your AI the power to make phone calls

    May 2026 · agenticcalling.ai · its alternatives →

  20. 20

    Reverse-engineered an old Nokia's firmware and added a custom AI Agent. Native functions like calls, alarms, or alarms can now be easily handled just by chatting. - anupray95/AI-Agent-on-a-NOKIA

    15d ago · github.com · its alternatives →

  21. 21

    Hi there, HN! We’re Jai and Sanket from DeepSource (YC W20), and today we’re launching Autofix Bot, a hybrid static analysis + AI agent purpose-built for in-the-loop use with AI coding agents. AI coding agents have made code generation nearly free, and they’ve shifted the bottleneck to code review. Static-only analysis with a fixed set of checkers isn’t enough. LLM-only review has several limitations: non-deterministic across runs, low recall on security issues, expensive at scale, and a tendency to get ‘distracted’. We spent the last 6 years building a deterministic, static-analysis-only…

    Dec 2025 · deepsource.com · its alternatives →

  22. 22NI

    Hi HN! My co-founder and I spent the last 4 weeks building something we desperately needed ourselves. The Problem: We spend hours processing emails - scheduling meetings, going through long newsletters, downloading attachments to review, verifying documents like invoices, and of course taking actions on external systems (Salesforce, Asana, Jira etc) based on emails received. A lot of this can be automated with the help of AI agents, saving several hours every week. Our Solution: Forward any email to a specialized AI agent that completes the task and email you back the results. No…

    2025 · mxtoai.com · its alternatives →

  23. 23

    Build AI agents for support, sales, voice automation

    Jun 2026 · agentreply.ai · its alternatives →

  24. 24

    Get a real phone number for your AI agent in under 10 minutes. Works with OpenClaw, Hermes Agent, and any LLM. Outbound calls, SMS, and inbound voice — one API. No telecom experience needed.

    May 2026 · agentline.cloud · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →